CN216491066U

CN216491066U - Integrative test fixture of miniature speaker

Info

Publication number: CN216491066U
Application number: CN202121593205.7U
Authority: CN
Inventors: 吴国侦; 周威龙; 农家权
Original assignee: Yiyang Xinwei Acoustic Technology Co Ltd
Current assignee: Yiyang Xinwei Acoustic Technology Co Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-05-10
Anticipated expiration: 2031-07-13

Abstract

The utility model discloses a micro-speaker integrated test tool which comprises a base, wherein an inwards concave containing cavity is arranged on one end face of the base and penetrates through one side face of the base, a cover plate and a baffle plate are further arranged on the base, the cover plate covers an opening of the containing cavity on the end face of the base, a probe extending into the containing cavity is arranged on the cover plate, the baffle plate covers an opening of the containing cavity on the side face, a sound outlet communicated with the containing cavity is formed in the baffle plate, a measuring microphone is further arranged on the base, and a receiving end of the measuring microphone extends into the containing cavity. The micro-speaker integrated test provided by the utility model can be used for simultaneously carrying out listening test, performance test and air tightness test on a micro-speaker sample so as to obtain data of the performance, the air tightness and the like of the micro-speaker sample, shorten the test period of the micro-speaker sample and improve the test efficiency.

Description

Integrative test fixture of miniature speaker

Technical Field

The utility model relates to the technical field of testing equipment, in particular to a micro-speaker integrated testing tool.

Background

In the research and development and production stages of the loudspeaker, various performances of the acoustic performance, the listening effect and the air tightness of the loudspeaker are generally required to be tested, the existing loudspeaker test scheme is generally to carry out listening test, performance test, air tightness test and the like on a loudspeaker sample in sequence, the test process is long, the test operation is complex, a large amount of time is required to be consumed, the research and development and production period of the loudspeaker is long, and the production efficiency is low. Therefore, an integrated testing tool for a micro-speaker is needed to test various performances of a speaker sample at the same time, so that the testing efficiency is improved, and the research, development and production time of the speaker is shortened.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model provides an integrative test fixture of miniature speaker that can improve efficiency of software testing.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides an integrative test fixture of micro loudspeaker, includes the base, be equipped with the holding chamber of indent on one of them terminal surface of base, just the holding chamber runs through one of them side of base, still be equipped with apron and baffle on the base, the apron covers the holding chamber is in opening part on the base terminal surface just be equipped with on the apron and stretch into the probe of holding intracavity, the baffle covers the holding chamber is in opening part on the side just be equipped with on the baffle with the phonate hole of holding chamber intercommunication, still be equipped with the measurement microphone on the base, the receiving terminal of measuring the microphone stretches into the holding intracavity.

Furthermore, a first sealing ring is arranged between the base and the cover plate, and the first sealing ring surrounds an opening of the accommodating cavity on the end face of the base.

Furthermore, a second sealing ring is arranged between the base and the baffle plate, the second sealing ring surrounds the opening of the accommodating cavity on the side face of the base, and the first sealing ring is connected with the second sealing ring.

Furthermore, the baffle is close to the one side of base is equipped with the cavity of indent, the second sealing washer reaches the sound outlet sets up respectively in the cavity just the second sealing washer encircles the sound outlet sets up.

Furthermore, one side of the cover plate is provided with a convex rotating part, and the base is provided with a groove matched with the rotating part.

Furthermore, a rotating pin is arranged in the groove, and a through hole for the rotating pin to pass through is formed in the rotating portion.

Furthermore, the cover plate is provided with a convex part, the convex part and the rotating part are respectively positioned at two opposite sides of the cover plate, and the cover plate is provided with a limit groove matched with the convex part.

Furthermore, one side of the protruding part, which is close to the base, is provided with a first magnetic attraction piece, and a second magnetic attraction piece matched with the first magnetic attraction piece is arranged in the limiting groove.

Further, still be equipped with the mounting panel on the base, the mounting panel with the baffle is located respectively the relative both sides of base, the interval is equipped with a plurality of mounting holes on the mounting panel.

Furthermore, a plurality of pressure relief holes are formed in the cover plate at intervals, and the pressure relief holes are far away from the sound outlet and the receiving end of the measuring microphone.

The utility model has the beneficial effects that: the micro-speaker integrated test tool provided by the utility model encloses a closed space for accommodating a micro-speaker sample through the base, the cover plate and the baffle plate, and performs listening test, performance test and air tightness test on the micro-speaker sample through the test microphone on the base, the probe on the cover plate and the sound outlet hole on the baffle plate simultaneously so as to obtain data such as performance, air tightness and the like of the micro-speaker sample, shorten the test period of the micro-speaker sample and improve the test efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a micro-speaker integrated test tool according to a first embodiment of the present invention;

FIG. 2 is an exploded view of the integrated testing tool for micro-speakers according to the present invention;

FIG. 3 is a partial exploded view of the integrated testing tool for micro-speakers according to the present invention;

fig. 4 is a cross-sectional view of a micro-speaker integrated test tool according to a first embodiment of the utility model.

Description of reference numerals:

1. a base; 11. an accommodating cavity; 12. a measurement microphone; 13. a groove; 14. a rotation pin; 15. a limiting groove; 16. a second magnetic attraction member; 2. a cover plate; 21. a probe; 22. a rotating part; 23. a projection; 24. a first magnetic attraction member; 25. a pressure relief vent; 26. a through hole; 3. a baffle plate; 31. a sound outlet; 32. a chamber; 4. a first seal ring; 5. a second seal ring; 6. mounting a plate; 61. mounting holes; 7. a micro-speaker sample.

Detailed Description

In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 4, an integrated testing tool for a micro speaker includes a base 1, an inwardly concave accommodating cavity 11 is provided on one end surface of the base 1, the accommodating cavity 11 penetrates through one side surface of the base 1, a cover plate 2 and a baffle plate 3 are further provided on the base 1, the cover plate 2 covers an opening of the accommodating cavity 11 on the end surface of the base 1, a probe 21 extending into the accommodating cavity 11 is provided on the cover plate 2, the baffle plate 3 covers an opening of the accommodating cavity 11 on the side surface, a sound outlet 31 communicated with the accommodating cavity 11 is provided on the baffle plate 3, a measuring microphone 12 is further provided on the base 1, and a receiving end of the measuring microphone 12 extends into the accommodating cavity 11.

From the above description, the beneficial effects of the present invention are: the micro-speaker integrated test provided by the utility model can simultaneously carry out listening test, performance test and air tightness test on the micro-speaker sample 7 so as to obtain data such as performance, air tightness and the like of the micro-speaker sample 7, shorten the test period of the micro-speaker sample 7 and improve the test efficiency.

Further, a first sealing ring 4 is arranged between the base 1 and the cover plate 2, and the first sealing ring 4 surrounds an opening of the accommodating cavity 11 on the end face of the base 1.

As can be seen from the above description, the first sealing ring 4 is disposed between the base 1 and the cover plate 2 to seal the opening of the accommodating cavity 11 on the end surface of the base 1, so as to improve the sealing performance of the accommodating cavity 11.

Further, a second sealing ring 5 is arranged between the base 1 and the baffle 3, the second sealing ring 5 surrounds the opening of the accommodating cavity 11 on the side surface of the base 1, and the first sealing ring 4 is connected with the second sealing ring 5.

It can be known from the above description that the sealing performance of the accommodating cavity 11 is further improved by arranging the second sealing ring 5, and the first sealing ring 4 is connected with the second sealing ring 5 so as to facilitate the assembly of the integrated testing tool for the micro-speaker.

Furthermore, baffle 3 is close to the one side of base 1 is equipped with indent cavity 32, second sealing washer 5 reaches sound outlet 31 sets up respectively in the cavity 32 just second sealing washer 5 encircles sound outlet 31 sets up.

Furthermore, one side of the cover plate 2 is provided with a protruding rotating part 22, and the base 1 is provided with a groove 13 matched with the rotating part 22.

Further, a rotating pin 14 is arranged in the groove 13, and a through hole 26 through which the rotating pin 14 passes is arranged on the rotating portion 22.

As can be seen from the above description, the cover plate 2 is rotatably connected to the base 1 through the rotation pin 14 and the through hole 26, so that the cover plate 2 can rotate relative to the base 1, and the micro-speaker sample 7 to be tested can be conveniently loaded into the containing cavity 11 or unloaded from the containing cavity 11.

Furthermore, a protruding portion 23 is arranged on the cover plate 2, the protruding portion 23 and the rotating portion 22 are respectively located on two opposite sides of the cover plate 2, and a limiting groove 15 matched with the protruding portion 23 is arranged on the cover plate 2.

Furthermore, a first magnetic attraction piece 24 is arranged on one surface of the protruding portion 23 close to the base 1, and a second magnetic attraction piece 16 matched with the first magnetic attraction piece 24 is arranged in the limiting groove 15.

As can be seen from the above description, after the cover 2 is matched with the base 1, the first magnetic attraction member 24 is attracted by the second magnetic attraction member 16, so as to fix the relative position between the cover 2 and the base 1, and align the probe 21 on the cover 2 with the micro-speaker sample 7.

Further, still be equipped with mounting panel 6 on the base 1, mounting panel 6 with baffle 3 is located respectively base 1's relative both sides, the interval is equipped with a plurality of mounting holes 61 on the mounting panel 6.

According to the above description, the integrated testing tool for the micro-speaker can be installed on the automatic testing equipment through the installing plate 6 arranged on the base 1, so that the testing process of the micro-speaker sample 7 is automatically completed through the automatic testing equipment, and the testing efficiency is further improved while the manpower is saved.

Furthermore, a plurality of pressure relief holes 25 are arranged on the cover plate 2 at intervals, and the pressure relief holes 25 are far away from the sound outlet hole 31 and the receiving end of the measuring microphone 12.

As can be seen from the above description, the pressure relief hole 25 is formed in the cover plate 2 to balance the air pressure inside and outside the accommodating cavity 11, so as to ensure the accuracy of the obtained data.

Example one

Referring to fig. 1 to 4, a first embodiment of the present invention is: a micro-speaker integrated test tool is used for carrying out listening test, performance test and air tightness test on a micro-speaker sample 7.

As shown in fig. 1, 3 and 4, the integrated testing tool for the micro-speaker comprises a base 1, an inwards concave containing cavity 11 is arranged on one end face of the base 1, the containing cavity 11 penetrates through one side face of the base 1, the end surface of the base 1 provided with the accommodating cavity 11 is vertical to the side surface of the base 1 penetrated by the accommodating cavity 11, the accommodating cavity 11 is used for accommodating a sample to be tested, the base 1 is also provided with a cover plate 2 and a baffle plate 3, wherein the cover plate 2 covers the opening of the accommodating cavity 11 on the end surface of the base 1, and the cover plate 2 is provided with a probe 21 extending into the accommodating cavity 11, baffle 3 covers holding chamber 11 is in opening part on the side of base 1 just be equipped with on the baffle 3 and stretch into the sound outlet 31 of holding chamber 11 intercommunication, still be equipped with on the bottom plate and stretch into the test microphone in the holding chamber 11.

Specifically, after the micro-speaker sample 7 to be tested is placed in the accommodating cavity 11 and the cover plate 2 and the baffle plate 3 are closed, the sound outlet of the micro-speaker sample 7 is aligned with the sound outlet hole 31, the probe 21 is communicated with the micro-speaker sample 7 to be tested, the receiving end of the testing microphone is close to the micro-speaker sample 7, so that the sound emitted from the sound outlet hole 31 by the micro-speaker sample 7 can be obtained through testing equipment, the relevant data of the micro-speaker sample 7 can be obtained through the probe 21 and the testing microphone, and the testing on the performances such as the acoustic performance, the air tightness and the like of the micro-speaker sample 7 can be realized.

As shown in fig. 2 and 3, a first sealing ring 4 is disposed between the base 1 and the cover plate 2, the first sealing ring 4 is disposed around an opening of the accommodating cavity 11 on the end surface of the base 1, and after the cover plate 2 is assembled on the base 1, the first sealing ring 4 is located between the base 1 and the cover plate 2 to seal the opening of the accommodating cavity 11 on the end surface of the base 1. The base 1 with be equipped with second sealing washer 5 between the baffle 3, second sealing washer 5 encircles holding chamber 11 is in opening part setting on the base 1 side, baffle 3 assembles back on the base 1 second sealing washer 5 is located between base 1 with behind the baffle 3 with holding chamber 11 is in the opening on the base 1 side is sealed. And then through setting up first sealing washer 4 with second sealing washer 5 ensures that holding chamber 11 is sealed, avoids holding chamber 11 leaks gas and leads to the test result inaccurate.

In detail, be equipped with the cavity 32 of indent on the baffle 3, sound outlet 31 sets up on the bottom surface of cavity 32, second sealing washer 5 sets up in the cavity 32 and encircle sound outlet 31 sets up, the integrative test fixture of miniature speaker assembles the back base 1 reaches 2 parts of apron stretch into in the cavity 32, promptly during the integrative test fixture of miniature speaker assembles, put into the miniature speaker sample 7 that awaits measuring earlier in the holding chamber 11, then will the apron 2 is closed, will again the baffle 3 with the side of base 1 is supported and is held and can accomplish the assembly. And the first sealing ring 4 is connected with the second sealing ring 5, so that the integrated testing tool for the micro-speaker is convenient to assemble.

In this embodiment, the base 1 reaches the material of baffle 3 is the metal respectively, the material of apron 2 is plastics, first sealing washer 4 reaches the material of second sealing washer 5 is the bubble cotton respectively, just the thickness of first sealing washer 4 is 0.5mm, the thickness of second sealing washer 5 is 1mm, in order to ensure that integrative test fixture of micro loudspeaker has good durability. And when the integrated testing tool for the micro-speaker is assembled, the compression rate of the first sealing ring 4 and the second sealing ring is 40% -50%.

Please combine as shown in fig. 1 and fig. 2, still be equipped with mounting panel 6 on the base 1, mounting panel 6 with the baffle 3 is located respectively the relative both sides of base 1, mounting panel 6 with base 1 fixed connection just the interval is equipped with a plurality of mounting holes 61 on the mounting panel 6, through mounting holes 61 can with base 1 is installed to automatic test equipment on, and the four corners of baffle 3 is equipped with the hole site respectively for baffle 3 is connected with automatic test, and then carries out through automatic equipment the assembly and the split of integrative test fixture of miniature speaker, makes the test procedure of miniature speaker sample 7 go on automatically, in order to further improve efficiency of software testing.

Preferably, the cover plate 2 is rotatably connected with the base 1, and the micro-speaker sample 7 to be tested can be conveniently placed into the accommodating cavity 11 or the tested micro-speaker sample 7 can be taken out of the accommodating cavity 11 by rotating the cover plate 2. The interval is equipped with two and the pressure release hole 25 of holding chamber 11 intercommunication on the apron 2, so that when apron 2 is closed the inside and outside atmospheric pressure of holding chamber 11 is unanimous, just pressure release hole 25 all keeps away from go out phonate hole 31 and test microphone sets up, in order to avoid pressure release hole 25 produces the influence to the test result.

Example two

Referring to fig. 2 and 3, another technical solution is proposed for the structure of the base 1 and the cover 2 based on the first embodiment, which is different from the first embodiment only in the structure of the cover 2 and the base 1.

As shown in fig. 2, two opposite sides of the cover plate 2 are respectively provided with a rotating portion 22 and a protruding portion 23, the base 1 is provided with a groove 13 matched with the rotating portion 22 and a limiting groove 15 matched with the protruding portion 23, the groove 13 is provided with a rotating pin 14, and the rotating portion 22 is provided with a through hole 26 for the rotating pin 14 to pass through, so that the cover plate 2 can rotate smoothly relative to the base 1, and the protruding portion 23 and the limiting groove 15 are matched to limit the relative position of the cover plate 2 and the base 1 after the cover plate 2 is closed, thereby preventing the cover plate 2 from generating unexpected movement after being closed.

Referring to fig. 2 and 3, a first magnetic attraction member 24 is disposed on a side of the protruding portion 23 close to the base 1, a second magnetic attraction member 16 matched with the first magnetic attraction member 24 is disposed in the limiting groove 15, and the first magnetic attraction member 24 is attracted to the second magnetic attraction member 16 after the cover plate 2 is closed, so that the cover plate 2 and the base 1 can be conveniently fixed in relative position, and the cover plate 2 and the base 1 can be conveniently separated from each other, so that the integrated testing tool for the micro-speaker is convenient to operate.

In summary, the integrated testing tool for the micro-speaker provided by the utility model encloses a closed accommodating cavity for accommodating a micro-speaker sample to be tested through the base, the cover plate and the baffle, and the base is provided with the testing microphone, the cover plate is provided with the probe and the baffle is provided with the sound outlet, so as to simultaneously perform listening tests, performance tests, air tightness tests and the like on the micro-speaker sample, further obtain data such as performance, air tightness and the like of the micro-speaker sample at one time, shorten the time for testing the micro-speaker sample, greatly improve the testing efficiency of the micro-speaker sample, and be beneficial to shortening the research, development and production periods of the micro-speaker.

Claims

1. The utility model provides an integrative test fixture of miniature speaker which characterized in that: the on-line screen storage device comprises a base, be equipped with the holding chamber of indent on one of them terminal surface of base, just the holding chamber runs through one of them side of base, still be equipped with apron and baffle on the base, the apron covers the holding chamber is in opening part on the base terminal surface just be equipped with on the apron and stretch into the probe of holding intracavity, the baffle covers the holding chamber is in opening part on the side just be equipped with on the baffle with the phonate hole of holding chamber intercommunication, still be equipped with the measurement microphone on the base, the receiving terminal of measuring microphone stretches into the holding intracavity.

2. The integrated testing tool for the micro-speaker according to claim 1, wherein: a first sealing ring is arranged between the base and the cover plate, and the first sealing ring is arranged around an opening of the accommodating cavity on the end face of the base.

3. The integrated testing tool for the micro-speaker according to claim 2, wherein: a second sealing ring is arranged between the base and the baffle, the second sealing ring surrounds the accommodating cavity and is arranged at an opening on the side face of the base, and the first sealing ring is connected with the second sealing ring.

4. The integrated testing tool for the micro-speaker according to claim 3, wherein: the baffle is close to the one side of base is equipped with the cavity of indent, the second sealing washer reaches the sound hole sets up respectively in the cavity just the second sealing washer encircles the sound hole sets up.

5. The integrated testing tool for the micro-speaker according to claim 1, wherein: one side of the cover plate is provided with a convex rotating part, and the base is provided with a groove matched with the rotating part.

6. The integrated testing tool for the micro-speaker according to claim 5, wherein: the groove is internally provided with a rotating pin, and the rotating part is provided with a through hole for the rotating pin to pass through.

7. The integrated testing tool for the micro-speaker according to claim 5, wherein: the cover plate is provided with a convex part, the convex part and the rotating part are respectively positioned at two opposite sides of the cover plate, and the cover plate is provided with a limit groove matched with the convex part.

8. The integrated testing tool for the micro-speaker according to claim 7, wherein: the protruding part is provided with a first magnetic attraction piece on one side close to the base, and a second magnetic attraction piece matched with the first magnetic attraction piece is arranged in the limiting groove.

9. The integrated testing tool for the micro-speaker according to claim 1, wherein: still be equipped with the mounting panel on the base, the mounting panel with the baffle is located respectively the relative both sides of base, the interval is equipped with a plurality of mounting holes on the mounting panel.

10. The integrated testing tool for the micro-speaker according to claim 1, wherein: a plurality of pressure relief holes are formed in the cover plate at intervals, and the pressure relief holes are far away from the sound outlet and the receiving end of the measuring microphone.